Air-compressor.



A. F. PELLBR. AIR COMPRESSOR.

APPLICATION FILED NOV, 13, 1911. 1,1 10,123. Patented Sept. 8, 1914.

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A. F. FELLER. AIR COMPRESSOR. APPLICATION FILED 11011.13, 1911.

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Specification of Letters Batent.

Patented Sept. 8, 1914.

p ic ion fi es N vem er 1 191 s ia N .93.

Zo all whom it may concern.-

1 known that AR B' FELLEB: a citizen of the United States residing at Berkeley, in the county of Alameda and State of California, have invented certain new and useful Improvements in Air-Compressors, of which the following is a specification.

This invention relates to improvements in air compressors and motors for drivin the same, and one of the novel features oi the invention resides in a construction wherein the motor and compressor are combined in a single casing.

My invention also resides in certain novel features of construction embodied in the motor for driving the compressor, and further, in novel features of construction enibodied in the compressor.

My invention will be more fully described in connefltiolwith the accompanying drawings and will be more particularly pointed .Qllt by the appended claims.

In the drawings F igure 1 is a view in side elevation of one embodiment of my invention showing a portion of the casing removed to disclose interior portions of the mechanism. Fig. 2 is a View in elevation showing a pQrtiQn of the casing removed to disclose the compressor. Fig, 3 is a horizontal sectional View on line 3-3 ct Fig. 2. Fi & is an end view. Fig. 5 is a sectional view on line of Fig. 1. Fig, 6 is a sectional view on line B6 of Fig, 1,

Like numerals of reference designate similar parts throughou h rent figur of the drawings.

My invention will 110W be described in connection with the specific embodiment herein disclosed by the accompanying drawings but it will be understood that I do not wish to be limited to the precise construction h wn ex p f r uc l mitation as th claims may import.

As shown, 1 designates a casing having a compressor 2 and a pump chamber 3 divided by a partition 4. The sides of the casing are open and suitable journal plates 5 and 6 may be provided to close the sides of the casing and may be secured in any desired manner. Conveniently the plate 5 is provided with a bearing 7 -in which is journaled one end of a main operating shaft 8. The other end of said shaft is journale'd in a bearing 9 formed in the plate 6 and the 5 it may a o ha e a. bear ng in the P omen 4- 4 Ant ita e orm of Pack g y be providegl'to prevent communication between the com r s r nd pu ham s, 2 a d 3 is pest ve y, t he p i t Where e haft 8 Passe th o gh th P iti HoW vee esmvch s t l s n t a eat re of my n tr n, he s c ki s s no hown- As idler sha t 10 s disp s d in para le relatl n h t e haft 8 and on o t d is sou-ree e in t e i g, a a 1 and the ot er end is i umaled n a e r n 12 i Pla '5 g:

Re rri g w t th on ruct o o h motor, the some consists as shown of two rotary turbine m n s 13 d 4.: h v ee h or b ades adapted f r oactin mesh e gagement. The idth of the r y ma ti 13mm 1 is llfifi fi lt t0 fi l the pump chambe transve se y the eof, n h c a her s so proportioned that the peripheral Portions of he eth of h lem n 13 a .1 e gage th n e ior of the cham er with a gh orking fi t Th pump chamber 3 s pr vided wi h a inlet 15, for the moti fluid, a I p ably provide d flec ing mean 16, which may be "in the form of a transversely disposed member shown in F gs .1 and 6, a ranged to deflect the motive fluid toward the opposltely receding teeth or blades of the turbine elements 13 and'l An outlet. 17 is provided for the pump chamber 3, and if desi ed, arres mg means 18 may be provided to prevent the turbine blades from carrying the outgoing fluid upwardly into the intake side of the elements 13 and l4. Segmental grooves 18 and 20 may be provided in the cover plate 6 and in th partition wall 4. respect vely to permit the escape of motive fluid which is trapped by the turbine teeth or blad s, and, n a s Wher s eam is used, to 1prevent the formation of a-vacuum.

t Wlll be seen from the construction hereinbefore described, that each element 13 and 14; acts as a driving turbine element and notwithstanding the fact that the load is directly imposed upon the element 13, the element 1 L will coact with the element 13, by reason of the mesh engagement, and will afford a working surface area. to the motive fluid equal to the working area afforded by the element 13.

The compressor comprises a rotor 21 to the chamber 2 and the roportions and arrangement are such that t e rotor 21 engages the wall ofthe chamber 2 at one point thereof. An air inlet 22 is provided and an out. let 23 also communicates with the ohainber2 and the inlet and the inlet and outlet open to the chamber 2 at points adjacent the point of contact of the rotor 21 with the chamber 2. The rotor 21 is provided with a reduced journal 24 seated in a bearing 25 formed in the artition 4;. The remainder ofthe body of t e rotor 21, and the shaft 8 for a width equal to the width of the chamber 2, is grooved or subdivided to provide a passage or slideway for-vanes 26 and 27. The vanes 26 and 27'arenormally displaced in opposite directions and toward the peripheral wall of the chamber 2 by means of one or more expansively acting springs 28 and the outer ends of the vanes 26 and 27 are provided with sockets,29 and for receiving shoes 29' and 30- respectively. The shoes 29 and 30 havei segmental oscillatable bearing surfaces 30 and 34, respectively, which are formed complementary to the said sockets 29 and 30, respectively, and the outer bearing faces of said, shoes are formed complementary to the internal periphery of said casing 2. As indicated in dotted lines in Fig. 2, when the rotor 21 is'turned, the shoes follow closely the internal periphery of the casing and oscillate back and forth at each revolution of the rotor. Corresponding recesses 31 and 32 are provided in the periphery of the rotor 21, and at the extremities of the grooved portions thereof, to

receive the shoes 29 and 30, respectively, as will be obvious by reference to Fig. 2.

The operation will be fully understood from the foregoing description but may be briefly recapitulated as follows :-Entrance of the motive fluid through the inlet 15 will drive the elements 13 and 14 in opposite directions as indicated by the arrows and the motive fluid will be discharged through the outlet 17 Operation or the elements 13 and 1 1 will drive the rotor 21 in the direction indicated by the arrow and assuming that chamber will be filled with induced air whereas the vane 27 will be forcing the air in the left hand side of the chamber 2 outwardly through the outlet 23.

It will thus be seen that the action of the compressor is substantially continuous and that the action of the motor is substantiall continuous, thereby providing a very eihci'ent action. it will be understood that the compressor may be utilized for gases other than air and that any desired motive fluid may be utilized for the motor.

I claim A motor of the geared type comprising a casing and guide plates therefor, said plates having substantially flat inner surfaces, two intermeshing gears mounted within said casing, said casing being provided with an inlet and an outlet on opposite sides of the point of contact between the teeth of said gears, a pair of baffles of imilar shape disposed in front of said inlet and said outlet respectively, and adapted to direct fluid onto the teeth of both of said gears equally, said baffles being provided with a pair of curved surfaces adapted to make rubbing contact with the ends of the teeth on each of the ears, and said guide plates being provided with two pairs of, segmental grooves one pair on each side of the line joining the centers of rotation of the two gears, each of said grooves extending from a point on a line with the ends of the teeth of one of the gears near the line of connection between the centers of the gears to a point beyond said bafies and in free communication with either said inlet or sad outlet."

In testimony whereof I ailix my signature in presence of two witnesses.

'. ADOLPH l FELLER. Witnesses:

Frances V. JoHNsron, W. A. STOCK. 

